HDD Benchmarks: HD Tach

HD Tach
is a physical performance hard drive test for Windows 95/98/ME and Windows
NT/2000. In Windows 9X/ME it uses a special kernel mode VXD to get maximum
accuracy by bypassing the file system. A similar mechanism is used in Windows
NT/2000/XP. HD Tach reads from areas all over the hard drive and reports an
average speed. It also logs the read speeds to a text file that you can load
into a spreadsheet and graph to visually read the results of the test.

HD Tach 3.0.4 - 8MB
Tests - READ

Burst Speed: (Mb/s)

Points

Ranking

Western Digital 1TB WD1001FALS HDD

214.7

Western Digital 1TB WD1001FALS HDD (RAID
0)

277.8

Western Digital 1TB WD1001FALS HDD (RAID
1)

188.8

OCZ Vertex 2 128GB SSD

266.6

Plextor PX-128M1S SSD

143.4

Seagate 3TB Barracuda
XT HDD

366.4

Seagate 2TB Barracuda XT HDD

336.4

Seagate 750GB Momentus XT SSHD

405.1

Seagate 500GB Momentus XT SSHD

231.7

Average Read: (MB/s)

Points

Ranking

Western Digital 1TB WD1001FALS HDD

90.5

Western Digital 1TB WD1001FALS HDD (RAID
0)

150.8

Western Digital 1TB WD1001FALS HDD (RAID
1)

90.7

OCZ Vertex 2 128GB SSD

243.7

Plextor PX-128M1S SSD

103.4

Seagate 3TB Barracuda
XT HDD

137.3

Seagate 2TB Barracuda XT HDD

115.5

Seagate 750GB Momentus XT SSHD

95.9

Seagate 500GB Momentus XT SSHD

89.4

Random Access Time: (ms)

Points

Ranking

Western Digital 1TB WD1001FALS HDD

12.1

Western Digital 1TB WD1001FALS HDD (RAID
0)

12

Western Digital 1TB WD1001FALS HDD (RAID
1)

10.1

OCZ Vertex 2 128GB SSD

0.1

Plextor PX-128M1S SSD

0.3

Seagate 3TB Barracuda
XT HDD

16.7

Seagate 2TB Barracuda XT HDD

17

Seagate 750GB Momentus XT SSHD

0.4

Seagate 500GB Momentus XT SSHD

17

HDTach measures how fast the system can transfer
information from the hard disk to RAM. Thanks to the 64MB of onboard cache, the
3TB Seagate Barracuda XT HDD achieves a burst speed of 366.7 MB/s. Average read
is measured at 137.3MB/s.